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| 海南八门湾沿岸表层沉积物重金属分布特征及污染评价 |
| Distribution Characteristics and Evaluation of Heavy Metals in the Surface Sediment of Bamen Bay |
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| DOI： |
| 中文关键词: 重金属 沉积物 地累积系数 生态危害评价 八门湾 |
| 英文关键词: Heavy metals Sediment Index of geo accumulation Ecological risk assessment Bamen bay |
| 基金项目:国家重点研发计划基金资助项目(2017YFC0506104)；国家自然科学基金资助项目(41661111)；海南省自然科学面上基金资助项目(318MS119)；2018年海南省海洋与渔业科学技术研究基金资助项目(204004) |
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| 中文摘要: |
| 通过在海南八门湾内布设15个调查站位，监测分析表层沉积物中重金属分布、污染来源及潜在生态风险。结果表明，研究区表层沉积物中Cu、Pb、Zn、Cr、Cd、Hg和As 平均值分别为1978 mg/kg、594 mg/kg、3627 mg/kg、1599 mg/kg、018 mg/kg、004 mg/kg和682 mg/kg；Pb、Cr及Zn，Cu与Cd、As可能具有相同或相似污染源；重金属污染程度以轻微生态危害为主，其次为中等生态危害及强生态危害；重金属Cd与Hg为主要潜在生态危害因子，潜在生态风险由高到低依次为Cd＞Hg＞As＞Cu＞Pb＞Zn＞Cr。 |
| 英文摘要: |
| The distribution， pollution sources and potential ecological risks of heavy metals in the surface sediment of 15 survey sites in Bamen bay Hainan were analyzed. The results showed that the mean value of Cu， Pb， Zn， Cr， Cd， Hg and As were 19.78 mg/kg， 5.94 mg/kg， 36.27 mg/kg， 15.99 mg/kg， 0.18 mg/kg， 0.04 mg/kg and 6.82 mg/kg， respectively. Pb， Cr and Zn might be from the same or similar source. So were Cu， Cd and As. The pollution degree was mainly slight ecological hazard， secondly was medium and strong. Cd and Hg were the main potential ecological hazard factors. The potential ecological risk ranked from high to low was Cd， Hg， As， Cu， Pb， Zn and Cr. |
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